A shell and tube heat exchanger baffle with reduced pressure drop loss

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a shell and tube heat exchanger baffle with reduced pressure drop loss, including a supporting bracket, a groove is opened on the surface of the supporting bracket, a gear assembly is arranged inside the groove, and the top of the supporting bracket is fixedly connected to an outer shell tube. The utility model arranges the gear assembly, and a servo motor transmits rotational motion to a main bevel gear through a transmission shaft. Since the main bevel gear is meshed with a secondary bevel gear, and the secondary bevel gear is fixed on the forward and reverse threaded rods, when the secondary bevel gear rotates following the drive of the servo motor, it guides the forward and reverse threaded rods to rotate in the auxiliary bearing, causing the movable threaded sleeves on both sides and the baffles connected thereto to move in the same direction, thereby adjusting the spacing between the baffle bodies, and then the size and shape of the flow channel can be adjusted and optimized according to actual needs, so that the fluid can flow smoothly therein, thereby reducing the pressure drop loss of the fluid during the flow process.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a shell and tube heat exchanger baffle with the function of reducing pressure drop loss. Background Art

[0002] In a traditional shell and tube heat exchanger, baffles are used to change the flow direction of the fluid in the shell to increase the contact area and time of the fluid between the tube bundles, thereby improving the heat transfer effect. However, there are often some problems with the existing baffle design.

[0003] Most shell and tube heat exchangers use baffles with fixed spacing, which makes it impossible to adjust the flow channel size and shape according to actual working conditions. Therefore, under different operating conditions, the fluid may not flow in the optimal state, resulting in increased pressure drop. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a shell and tube heat exchanger baffle with reduced pressure drop loss.

[0005] The utility model is implemented by the following technical scheme: a shell and tube heat exchanger baffle with reduced pressure drop loss, comprising a support bracket, a groove is provided on the surface of the support bracket, a gear assembly is arranged inside the groove, and a shell tube is fixedly connected to the top of the support bracket;

[0006] The gear assembly includes a motor protection seat, the bottom of which is arranged inside the groove, a servo motor is arranged inside the motor protection seat, the output end of the servo motor is fixedly connected to a transmission shaft, the top of the transmission shaft is fixedly connected to a main bevel gear, and the outer surface of the main bevel gear is meshed with a secondary bevel gear.

[0007] Through the above technical solution, the servo motor transmits the rotational motion to the main bevel gear through the transmission shaft. Since the main bevel gear is meshed with the secondary bevel gear, and the secondary bevel gear is fixed on the forward and reverse threaded rods, when the secondary bevel gear rotates following the drive of the servo motor, it guides the forward and reverse threaded rods to rotate in the auxiliary bearing, causing the movable threaded sleeves on both sides and the baffles connected thereto to move in the same direction, thereby adjusting the spacing between the baffle bodies, and then changing the size and shape of the flow channel. The adjusted flow channel can reduce the pressure drop loss of the fluid during the flow process, thereby reducing energy consumption and corresponding operating costs.

[0008] As a further improvement of the above solution, auxiliary bearings are provided at the tops of both sides of the supporting bracket, and positive and negative threaded rods are fixedly connected to the surfaces of the auxiliary bearings.

[0009] Through the above technical solution, the threads engraved on both sides of the forward and reverse threaded rods are opposite. When the forward and reverse threaded rods rotate, the movable threaded sleeves on both sides and the baffles connected thereto move in the same direction, thereby adjusting the spacing between the baffle bodies.

[0010] As a further improvement of the above solution, the forward and reverse threaded rods are rotatably connected to the surface of the supporting bracket through auxiliary bearings.

[0011] Through the above technical solution, the auxiliary bearing can withstand the axial load, reducing the direct contact and wear between the positive and negative threaded rods and the supporting bracket.

[0012] As a further improvement of the above solution, the auxiliary bevel gear is fixedly connected to the middle part of the outer surface of the forward and reverse threaded rod.

[0013] Through the above technical solution, since the secondary bevel gear is fixed on the forward and reverse threaded rod, when the secondary bevel gear rotates following the drive of the servo motor, it guides the forward and reverse threaded rod to rotate in the auxiliary bearing.

[0014] As a further improvement of the above solution, movable thread sleeves are provided on both sides of the outer surface of the forward and reverse threaded rods.

[0015] Through the above technical solution, the forward and reverse threaded rods rotate in the auxiliary bearings, causing the movable threaded sleeves on both sides to move toward the middle or both sides simultaneously, thereby adjusting the distance between the baffle bodies on both sides.

[0016] As a further improvement of the above solution, a baffle body is fixedly connected to the surface of the movable threaded sleeve.

[0017] Through the above technical solution, when the position of the baffle body needs to be adjusted, it can be achieved by adjusting the position of the movable threaded sleeve, which is very convenient.

[0018] As a further improvement of the above solution, a fluid pipe is fixedly connected to one side of the outer surface of the supporting bracket.

[0019] Through the above technical solution, the fixed connection helps to reduce the vibration that may be generated in the fluid pipe when the fluid flows, thereby reducing noise and extending the life of the equipment. In addition, the fixed position of the fluid pipe can optimize the flow direction of the fluid, reduce fluid resistance, and improve the efficiency of fluid transmission.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model sets a gear assembly, and the servo motor transmits the rotational motion to the main bevel gear through the transmission shaft. Since the main bevel gear is meshed with the auxiliary bevel gear, and the auxiliary bevel gear is fixed on the forward and reverse threaded rods, when the auxiliary bevel gear follows the drive rotation of the servo motor, it guides the forward and reverse threaded rods to rotate in the auxiliary bearing, causing the movable threaded sleeves on both sides and the baffles connected thereto to move in the same direction, thereby adjusting the spacing between the baffle bodies, and then the size and shape of the flow channel can be adjusted and optimized according to actual needs, so that the fluid can flow smoothly therein, thereby reducing the pressure drop loss of the fluid during the flow process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the positive and negative threaded rod of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the fluid pipe of the utility model;

[0025] Figure 4 It is a schematic diagram of the explosion structure of the groove of the utility model;

[0026] Figure 5 It is a schematic diagram of the exploded structure of the gear assembly of the utility model.

[0027] Description of main symbols:

[0028] 1. Support bracket; 2. Groove; 3. Gear assembly; 301. Motor protection seat; 302. Servo motor; 303. Transmission shaft; 304. Main bevel gear; 305. Sub bevel gear; 4. Housing tube; 5. Auxiliary bearing; 6. Positive and negative threaded rod; 7. Movable threaded sleeve; 8. Baffle body; 9. Fluid tube. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0030] Example:

[0031] Please combine Figure 1-5 The shell and tube heat exchanger baffle with reduced pressure drop loss of this embodiment includes a support bracket 1, a groove 2 is provided on the surface of the support bracket 1, a gear assembly 3 is arranged inside the groove 2, and a shell tube 4 is fixedly connected to the top of the support bracket 1;

[0032] The gear assembly 3 includes a motor protection seat 301, the bottom of which is arranged inside the groove 2, and a servo motor 302 is arranged inside the motor protection seat 301. The output end of the servo motor 302 is fixedly connected to a transmission shaft 303, and the top of the transmission shaft 303 is fixedly connected to a main bevel gear 304. The outer surface of the main bevel gear 304 is meshed with a secondary bevel gear 305. The servo motor 302 transmits the rotational motion to the main bevel gear 304 through the transmission shaft 303. Since the main bevel gear 304 is meshed with the secondary bevel gear 305, and the secondary bevel gear 305 is fixed on the forward and reverse threaded rod 6, when the secondary bevel gear 305 rotates following the drive of the servo motor 302, it will guide the forward and reverse threaded rod 6 to rotate in the auxiliary bearing 5, causing the movable threaded sleeves 7 on both sides and the baffle body 8 connected thereto to move in the same direction, thereby adjusting the spacing between the baffle body 8, and then changing the size and shape of the flow channel. The adjusted flow channel can reduce the pressure drop loss of the fluid during the flow process, thereby reducing energy consumption and corresponding operating costs.

[0033] Auxiliary bearings 5 ​​are provided on the top of both sides of the supporting bracket 1, and the surface of the auxiliary bearings 5 ​​is fixedly connected with positive and negative threaded rods 6. The threads engraved on both sides of the positive and negative threaded rods 6 are opposite. When the positive and negative threaded rods 6 rotate, the movable threaded sleeves 7 on both sides and the baffle bodies 8 connected thereto move in the same direction, thereby adjusting the spacing between the baffle bodies 8.

[0034] The forward and reverse threaded rods 6 are rotatably connected to the surface of the supporting bracket 1 through the auxiliary bearings 5 ​​. The auxiliary bearings 5 ​​can withstand axial loads, thereby reducing direct contact and wear between the forward and reverse threaded rods 6 and the supporting bracket 1 .

[0035] The secondary bevel gear 305 is fixedly connected to the middle part of the outer surface of the forward and reverse threaded rod 6. Since the secondary bevel gear 305 is fixed on the forward and reverse threaded rod 6, when the secondary bevel gear 305 rotates following the drive of the servo motor 302, it will guide the forward and reverse threaded rod 6 to rotate in the auxiliary bearing 5.

[0036] Movable threaded sleeves 7 are provided on both sides of the outer surface of the forward and reverse threaded rods 6. The forward and reverse threaded rods 6 rotate in the auxiliary bearings 5, causing the movable threaded sleeves 7 on both sides to move toward the middle or both sides simultaneously, thereby adjusting the distance between the baffle bodies 8 on both sides.

[0037] The surface of the movable threaded sleeve 7 is fixedly connected with the baffle body 8. When the position of the baffle body 8 needs to be adjusted, it can be achieved by adjusting the position of the movable threaded sleeve 7, which is very convenient.

[0038] A fluid tube 9 is fixedly connected to one side of the outer surface of the supporting bracket 1. The fixed connection helps to reduce the vibration that may be generated by the fluid tube 9 when the fluid flows, thereby reducing noise and extending the life of the equipment. In addition, the fixed position of the fluid tube 9 can optimize the flow direction of the fluid, reduce fluid resistance, and improve the efficiency of fluid transmission.

[0039] The implementation principle of a shell and tube heat exchanger baffle with reduced pressure drop loss in the embodiment of the present application is as follows: the servo motor 302 drives the main bevel gear 304 to rotate through the transmission shaft 303, and the main bevel gear 304 and the secondary bevel gear 305 are meshed with each other. Therefore, when the main bevel gear 304 receives the rotational power of the servo motor 302, the secondary bevel gear 305 will also be driven to rotate synchronously. Since the secondary bevel gear 305 is installed on the surface of the forward and reverse threaded rod 6 in a fixed connection manner, when the secondary bevel gear 305 rotates with the drive of the servo motor 302, the forward and reverse threaded rod 6 will rotate on its axis under the support of the auxiliary bearing 5. Two movable thread sleeves 7 are sleeved on the forward and reverse threaded rod 6, which make linear motion relative to the threaded rod along the direction of the thread. Under the action of the thread, the two movable thread sleeves 7 will rotate according to the The rotation direction of the thread moves toward the middle or both sides to adjust the distance between the baffle bodies 8. By precisely adjusting the spacing between the baffle bodies 8, the size and shape of the flow channel can be changed, making the fluid flow more smoothly, thereby reducing the pressure drop loss. This fine adjustment of the flow channel helps to optimize the flow direction of the fluid and reduce the resistance encountered by the fluid during flow, thereby improving the efficiency of the entire fluid transmission system. Fixing the fluid pipe 9 on one side of the supporting bracket 1 is also to further improve the flow direction of the fluid, reduce unnecessary vibration and noise, and help extend the service life of the equipment. This fixed connection method ensures that the fluid pipe 9 remains stable during fluid flow, avoiding potential damage caused by vibration, while also reducing noise, providing users with a quieter operating environment.

[0040] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A shell and tube heat exchanger baffle with reduced pressure drop loss, characterized in that: It comprises a supporting bracket (1), a groove (2) is provided on the surface of the supporting bracket (1), a gear assembly (3) is arranged inside the groove (2), and a shell tube (4) is fixedly connected to the top of the supporting bracket (1); The gear assembly (3) comprises a motor protection seat (301), the bottom of the motor protection seat (301) is arranged inside the groove (2), a servo motor (302) is arranged inside the motor protection seat (301), the output end of the servo motor (302) is fixedly connected to a transmission shaft (303), the top end of the transmission shaft (303) is fixedly connected to a main bevel gear (304), and the outer surface of the main bevel gear (304) is meshedly connected to a secondary bevel gear (305).

2. A shell and tube heat exchanger baffle with reduced pressure drop loss as claimed in claim 1, characterized in that: Auxiliary bearings (5) are provided at the tops of both sides of the supporting bracket (1), and the surfaces of the auxiliary bearings (5) are fixedly connected with forward and reverse threaded rods (6).

3. A shell and tube heat exchanger baffle with reduced pressure drop loss as claimed in claim 2, characterized in that: The forward and reverse threaded rod (6) is rotatably connected to the surface of the supporting bracket (1) via an auxiliary bearing (5).

4. The shell and tube heat exchanger baffle with reduced pressure drop loss according to claim 1, characterized in that: The secondary bevel gear (305) is fixedly connected to the middle part of the outer surface of the forward and reverse threaded rod (6).

5. The shell and tube heat exchanger baffle with reduced pressure drop loss according to claim 2, characterized in that: Movable thread sleeves (7) are provided on both sides of the outer surface of the forward and reverse threaded rod (6).

6. A shell and tube heat exchanger baffle with reduced pressure drop loss as claimed in claim 5, characterized in that: A baffle body (8) is fixedly connected to the surface of the movable threaded sleeve (7).

7. The shell and tube heat exchanger baffle with reduced pressure drop loss according to claim 1, characterized in that: A fluid pipe (9) is fixedly connected to one side of the outer surface of the supporting bracket (1).

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